Defi controller v2

packages/assets-controllers/CHANGELOG.md

@@ -9,6 +9,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Add `DeFiPositionsControllerV2`, which fetches DeFi positions from the Accounts API v6 multiaccount balances endpoint and stores them in a client-ready shape under `allDeFiPositionsV2` ([#9503](https://github.com/MetaMask/core/pull/9503))
+  - Export `DeFiPositionsControllerV2` and `getDefaultDeFiPositionsControllerV2State`
+  - Export types including `DeFiPositionsControllerV2State`, messenger/action/event types, `DeFiPositionsByAccount`, and related position group types
+  - Export `DeFiPositionType`, `DEFI_POSITION_TYPES`, and `DEFI_POSITION_LIABILITY_TYPES` (`lending` is subtracted from protocol `marketValue`)
+  - Export `DeFiPositionsControllerV2FetchDeFiPositionsAction` and `buildDeFiBalancesQuery` helpers
 - Add Robinhood Chain (`4663`/`0x1237`) BalanceFetcher support for legacy single-call token detection ([#9473](https://github.com/MetaMask/core/pull/9473))
   - Add `Robinhood` in `SupportedTokenDetectionNetworks`
   - Add Robinhood BalanceFetcher address in `SINGLE_CALL_BALANCES_ADDRESS_BY_CHAINID`

packages/assets-controllers/src/DeFiPositionsController/DeFiPositionsControllerV2-method-action-types.ts

@@ -0,0 +1,27 @@
+/**
+ * This file is auto generated.
+ * Do not edit manually.
+ */
+
+import type { DeFiPositionsControllerV2 } from './DeFiPositionsControllerV2';
+
+/**
+ * Fetches DeFi positions for the selected account group and stores them,
+ * shaped for direct client consumption. Everything happens behind this
+ * method: resolving the accounts, calling the Accounts API, transforming the
+ * response, and updating state.
+ *
+ * Throttled per set of accounts by an in-memory minimum interval, so repeated
+ * calls within the window are no-ops (no HTTP, no regroup, no state write).
+ * Disabled controllers and empty account groups return without fetching.
+ */
+export type DeFiPositionsControllerV2FetchDeFiPositionsAction = {
+  type: `DeFiPositionsControllerV2:fetchDeFiPositions`;
+  handler: DeFiPositionsControllerV2['fetchDeFiPositions'];
+};
+
+/**
+ * Union of all DeFiPositionsControllerV2 action types.
+ */
+export type DeFiPositionsControllerV2MethodActions =
+  DeFiPositionsControllerV2FetchDeFiPositionsAction;